do not generate RTInfo for deprecated types and _error_ types
Fix makefile to work without git installed

While we are at it, use printf instead of echo.
fix Issue 9764 - Ddoc: Ddoc file name is incorrectly emphasized
Merge pull request #1775 from 9rnsr/fix9764

Issue 9764 - Ddoc: Ddoc file name is incorrectly emphasized
Merge pull request #1785 from rainers/rtinfo_on_deprecated

fix issue 9782: do not generate RTInfo for deprecated types and _error_ types
Merge pull request #1786 from leandro-lucarella-sociomantic/fix-devel-version

[trivial] Fix makefile to work without git installed